Review on Canon EF-S 17-55mm f/2.8 IS USM Lens - Compatible with Canon DSLR Cameras (Lens Only) by Chong Eun Moon ᠌

Great lens for crop. But when buying, be careful, you can’t rely on quality without looking, after all, it’s not L! Has some pros Constant decent aperture, ultrasonic motor, stabilizer - all this is very useful, especially if you sometimes indulge in shooting video. Internal focusing, the location of the rings for focus and zoom - everything is convenient. Has cons: The quality can vary greatly from one copy to another. I chose from two brought to me in the store. One turned out to be decent, and the second has dust between the lenses, back focus and a noticeably smaller depth of field.